Vengeful Flame Ephemera: Duplicate, uncolorable lightsource

[MarikBentusi]

This is the Vengeful Flame Ephemera on my Kavat (same bug applies to Warframes etc tho). I've colored the Ephemera with red (and purple), but as you can see on the floor, there's reflections of a red and a yellow light source. The second yellow light source coming off the Ephemera is always there and cannot be recolored. It tends to lag behind a bit during movement, but overlaps with the actual ephemera light spot when the character the Ephemera is attached to stands still.

This light source is only visible when reflected on level geometry. Sometimes it doesn't seem to pop up, but I haven't been able to establish a pattern there. Most of the time it is there.

I strongly assume this light source just isn't supposed to be there, or if it is then it should always overlap with the player-colored lightspot, right?